风扇/增压级动平衡工装最佳支承跨距计算方法
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摘要
某型航空发动机风扇增压级平衡工装采用悬臂支承结构,其支承跨距是该平衡工装的重要设计参数。针对该平衡工装的结构特点建立了最佳支承跨距的理论分析模型,给出了最佳支承跨距计算的解析表达式,并通过数值计算对最佳支承跨距进行了验证。结果表明:平衡工装最佳支承跨距的解析解与数值解一致,建立的最佳支承跨距计算方法可以为风扇增压级平衡工装的支承跨距的参数设计提供理论指导,提高平衡工装的平衡精度和平衡效果。
The cantilever structure is adopted in balance tool of an aeroengine fan/booster, and the balance tool bearing span is an important design parameter. The theoretical analysis model of the optimal bearing span was established according to the structure characteristics of the balance tool, and the analytical expression of the optimal bearing span was obtained. The result of expression was validated by numerical simulation. The results show that the theoretical result of the optimal bearing span is consistent with numerical calculation, and the calculation method of optimal bearing span can provide guidance to the parameter design of bearing span for balance tool of fan/booster, which can improve the balance accuracy and quality of balance tool.
The cantilever structure is adopted in balance tool of an aeroengine fan/booster, and the balance tool bearing span is an important design parameter. The theoretical analysis model of the optimal bearing span was established according to the structure characteristics of the balance tool, and the analytical expression of the optimal bearing span was obtained. The result of expression was validated by numerical simulation. The results show that the theoretical result of the optimal bearing span is consistent with numerical calculation, and the calculation method of optimal bearing span can provide guidance to the parameter design of bearing span for balance tool of fan/booster, which can improve the balance accuracy and quality of balance tool.
引文
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[11]龙向阳,洪杰,张大义,等.弹性环刚度强度的分析方法与力学特性研究[J].热能动力工程,2010,25(2):145-149.LONG Xiangyang,HONG Jie,ZHANG Dayi,et al.Study of the methods for analyzing the rigidity and strength of an elastic ring and its mechanics characteristics[J].Journal of Engineering for Thermal Energy and Power,2010,25(2):145-149.(in Chinese)
[12]程小勇,陈果,李成刚,等.航空发动机转子系统模拟支承设计与刚度计算[J].航空计算技术,2012(6):9-12.CHENG Xiaoyong,CHEN Guo,LI Chenggang,et al.Rotor support simulation design and equivalent stiffness computation for aeroengine[J].Aeronautical Computing Technique,2012(6):9-12.(in Chinese)
[2]全国机械振动与冲击标准化技术委员会.GB/T 9239.1-2006机械振动恒态(刚性)转子平衡品质要求第一部分:规范与平衡允差的检验[S].北京:中国标准出版社,2007:6-8.National Technical Committee on Mechanical Vibrations and Impacts of Standardization Administration of China.GB/T 9239.1-2006 Mechanical vibration-balance quality requirements for rotors in a constant(rigid)-part1:specification and verification of balance tolerances[S].Beijing:International Organization for Standardization,2007:6-8.(in Chinese)
[3]张济生.主轴部件最佳支承跨距的精确计算[J].制造技术与机床,1996(4):36-37.ZHANG Jisheng.The accurate calculation of spindle bearing span[J].Manufacturing Technology and Machine Tool,1996(4):36-37.(in Chinese)
[4]张国通.高速陶瓷电主轴设计及动静态性能分析[D].秦皇岛:燕山大学,机械工程学院,2015.ZHANG Guotong.Design and high-speed ceramic motorized spindle static and dynamic performance analysis[D].Qinhuangdao:Yanshan University,Machinery Manufacturing Academic.(in Chinese)
[5]裴大明,冯平法,郁鼎文.基于有限元方法的主轴轴承跨距优化[J].机械设计与制造,2005(10):44-46.PEI Daming,FENG Pingfa,YU Dingwen.Optimum design of spindle bearing distance based on FEM[J].Machinery Design&Manufacture,2005(10):44-46.(in Chinese)
[6]李松生,杨柳欣,王兵华.高速电主轴轴系转子动力学特性分析[J].轴承,2002(2):15-17.LI Songsheng,YANG Liuxin,WANG Binghua.Dynamics characteristic analysis of high speed electric spindle shaft rotors[J].Bearing,2002(2):15-17.(in Chinese)
[7]陈炳贻.航空发动机平衡工艺技术[J].航空科学技术,1996(2):7-10.CHEN Bingyi.Balance technology of aircraft engine[J].Aeronautical Science and Technology,1996(2):7-10.(in Chinese)
[8]苟文选.材料力学[M].北京:科学出版社,2005:40-42.GOU Wenxuan.Material mechanics[M].Beijing:Science Press,2005:40-42.(in Chinese)
[9]数学手册编写组.数学手册[M].北京:人民教育出版社,1979:88-89.Mathematics Handbook Compilation Group.Mathematics handbook[M].Beijing:People’s Education Press.1979:88-89.(in Chinese)
[10]陈忠.滚动轴承及其支承的刚度计算[J].煤矿机械,2006(3):387-388.CHEN Zhong.Stiffness computation of rolling bearing and its support[J].Coal Mine Machinery,2006(3):387-388.(in Chinese)
[11]龙向阳,洪杰,张大义,等.弹性环刚度强度的分析方法与力学特性研究[J].热能动力工程,2010,25(2):145-149.LONG Xiangyang,HONG Jie,ZHANG Dayi,et al.Study of the methods for analyzing the rigidity and strength of an elastic ring and its mechanics characteristics[J].Journal of Engineering for Thermal Energy and Power,2010,25(2):145-149.(in Chinese)
[12]程小勇,陈果,李成刚,等.航空发动机转子系统模拟支承设计与刚度计算[J].航空计算技术,2012(6):9-12.CHENG Xiaoyong,CHEN Guo,LI Chenggang,et al.Rotor support simulation design and equivalent stiffness computation for aeroengine[J].Aeronautical Computing Technique,2012(6):9-12.(in Chinese)